Chin and neck lipo: will this cannula shaped raised area go away? (Photo)

First, let me say my doctor said this is normal and I have no reason to distrust him. I’m just a bit of a worrier. I have searched and while I have found many posts about lumps and swelling, none of them look like mine. I am 10 days post op from extended submental liposuction. I noticed a cannula shaped raised area under both sides of my chin presumably where he passed the cannula through. Is this swelling? Scar tissue? Will it go away or am I botched?